CN201293886Y - Light modulation device - Google Patents
Light modulation device Download PDFInfo
- Publication number
- CN201293886Y CN201293886Y CNU2008201470678U CN200820147067U CN201293886Y CN 201293886 Y CN201293886 Y CN 201293886Y CN U2008201470678 U CNU2008201470678 U CN U2008201470678U CN 200820147067 U CN200820147067 U CN 200820147067U CN 201293886 Y CN201293886 Y CN 201293886Y
- Authority
- CN
- China
- Prior art keywords
- substrate
- layer
- transparent
- gel mould
- light modulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a light dimmer, which comprises a first substrate, a second substrate, a first conducting layer and a second conducting layer, wherein the first substrate and the second substrate are arranged oppositely, the first conducting layer and the second conducting layer are respectively arranged on the opposite surfaces of the first substrate and the second substrate, the edges of the first conducting layer and the second conducting layer are respectively equipped with a first printed circuit layer and a second printed circuit layer, a gel mould layer is arranged between the first conducting layer and the second conducting layer, and the gel mould is two polymers of polystyrene and poly-2-vinylpyridine. The utility model replaces the existing mixing body of liquid crystals and polymers by the novel gel mould, the gel mould is two polymers pf polystyrene and poly-2-vinylpyridine, materials in the utility model do not need to be added with light trigger or other catalytic agent, i.e. the contents and the transmittance of the gel mould can not be affected. Simultaneously the gel mould can rapidly change the refractive index and the transmittance of light when the gel mould is stimulated by the outside, and then the gel mould has fine quality.
Description
[technical field]
The utility model belongs to the optical device field, relates in particular to a kind of light modulation device.
[background technology]
At present, (Polymer Dispersed Liquid Crystal, PDLC) membraneous material has obtained using widely as the novel liquid crystal of a class, macromolecule membrane compound substance Polymer Dispersed Liquid Crystal.The PDLC film is that the form of micromolecule liquid crystal with droplet is dispersed in the polymeric matrix, under the alive outside effect, the photoelectricity anisotropy of liquid crystal uniqueness makes it be orientated along specific direction, changed the refractive index of transmitted light direction, this membraneous material can present two kinds of different optical states of transmission and scattering, and promptly the PDLC film can switch between transparence and two kinds of different conditions of fuzzy shape.It can satisfy the requirement of making the large tracts of land optically variable films, can be adapted at places such as meeting room, bedroom, bathroom and use as the privacy fenestrated membrane, and wide application prospect is arranged.
The structure of existing light modulation device is: comprise first substrate and second substrate that are oppositely arranged, and be arranged on first conductive layer and second conductive layer on the opposite face, be provided with envelope frame glue at the edge of first substrate and second substrate, first substrate, second substrate and envelope frame glue constitute an annular seal space, and sealing is equipped with Polymer Dispersed Liquid Crystal in the chamber.Wherein, the technology of preparing of existing pdlc film mainly is to prepare by photocuring system, in photopolymerizable compound mixture of raw material, just contains multiple materials such as cyclic hydrocarbon, aromatic hydrocarbons, heterocycle.Because photocuring is to cause by ultraviolet lighting, promptly need add an amount of light trigger or other catalyzer in starting material.And be coated with scrape before, polymkeric substance need be mixed uniformly with liquid crystal, be coated with also necessary control on the thicknesses of layers of scraping, wherein contact the polymeric layer that is necessary for of glass, liquid crystal molecule will be dispersed in polymkeric substance inside uniformly, just can apply under the state of external electric field then, make liquid crystal molecule regularly arranged, the refractive index that changes its light modulation device is controlled the conversion of transparence and fuzzy shape.
[utility model content]
Technical problem to be solved in the utility model provides a kind of light modulation device, be intended to solve in the existing starting material and must control polymkeric substance and full and uniform mixing and the thicknesses of layers of liquid crystal molecule owing to add liquid crystal molecule, make the content and the transmitance of pdlc film influenced, cause the problem of the quality decline of pdlc film.
The utility model is achieved through the following technical solutions:
A kind of light modulation device, comprise first substrate and second substrate that are oppositely arranged, and be separately positioned on first conductive layer and second conductive layer on first substrate and the second substrate opposite face, the edge of described first conductive layer and second conductive layer is respectively arranged with the first printed wire layer and the second printed wire layer, wherein, between first conductive layer and second layer electricity layer, be provided with the gel rete, described gel rete is polystyrene and two kinds of polymkeric substance of P2VP.
In the utility model, by replaced the mixture of existing liquid crystal and polymkeric substance with a kind of new gel mould, described gel mould is polystyrene and two kinds of polymkeric substance of P2VP, material among the application does not need to add liquid crystal molecule and other light trigger or catalyzer, and promptly the content of gel mould and transmitance can not be affected; Simultaneously, this gel mould is being subjected under the situation of environmental stimuli, can change the refractive index and the transmitance of light rapidly, so the quality of gel mould is good.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the light modulation device structural representation that the utility model embodiment provides;
Fig. 2 is the light modulation device making method schematic flow sheet that the utility model embodiment provides.
[embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Reference as shown in Figure 1, in the utility model embodiment, a kind of light modulation device is provided, comprise first substrate 11 and second substrate 12 that are oppositely arranged, and be separately positioned on first conductive layer 13 and second conductive layer 14 on first substrate 11 and second substrate, 12 opposite faces, the edge of described first conductive layer 13 and second conductive layer 14 is respectively arranged with the first printed wire layer and the second printed wire layer (figure does not indicate), wherein, between first conductive layer 13 and second layer electricity layer 14, be provided with gel rete 15, described gel rete is polystyrene and two kinds of polymkeric substance of P2VP.
In the utility model, described gel mould is made up of polystyrene and two kinds of polymeric materials of P2VP, the thickness of gel rete and refractive index have determined the refractive index of light modulation device, the refractive index of gel mould is determined by the weight of described polystyrene and two kinds of polymkeric substance of P2VP, polystyrene with respect to 100 weight portions, the content of P2VP is the 50-150 weight portion, is preferably the 80-120 weight portion.The thickness of gel rete is 10-60 μ m, is preferably 20-50 μ m.Under this thickness and refractive index, the transmitance of described light modulation device reaches more than 85%, and contrast is also relatively good.
Described first substrate 11 and second substrate 12 can be light modulation base material commonly used in the light modulator spare, for example can be in glass, polyethylene terephthalate (PET), polycarbonate (PC) and the polymethylmethacrylate (PMMA) etc. one or more.Wherein, the thickness of described first substrate 11 and second substrate 12 is 0.40-1.20mm, is preferably 0.40-0.90mm; The transmitance of described first substrate 11 and second substrate 12 is 75-95%, is preferably 85-90%.According to the preferred embodiment, can further improve the transmitance and the contrast of this light modulation device.
Described first conductive layer 13 and the second saturating conductive layer 14 are transparency conducting layer, and its thickness can be for the 10-100 nanometer, be preferably the 10-60 nanometer, and described transparency conducting layer is preferably the transparent conductive metal oxide skin(coating).Described transparent conductive metal oxide can be the various transparent conductive metal oxides that can be used for the light modulation device, for example can mix in antimony, zinc paste and the doped zinc oxide aluminium one or more, be preferably tin indium oxide for tin indium oxide, tin oxide, tin oxide.
The edge of described first conductive layer 13 and second conductive layer 14 also is respectively arranged with the first printed wire layer and the second printed wire layer, the described first printed wire layer and the second printed wire layer are electrically connected with first conductive layer and second conductive layer, are used for to light modulation device transmission of control signals.Described printed wire layer can be the various printed wire layers that can be used for the light modulation device, for example can be the printed wire layer that uses in touch-screen, electrochromism rearview mirror and the automobile light-modulating glass.
Preferably, described light modulation device also comprises a modulator (figure does not indicate), and described modulator is electrically connected with the first printed wire layer and the second printed wire layer, and described modulator is the rheostat that can control light modulation device both end voltage size.This modulator by with being electrically connected of printed wire layer, realize electrical connection to conductive layer, change the size of light modulation device both end voltage, thereby change the thickness of gel layer, realize exchanging the control of optical device transmitance and refractive index.Its principle is for by keeping the polystyrene layer thickness constant, simultaneously with outside stimulus as applying under the situation such as voltage, change the thickness of P2VP layer.
Particularly, the key of regulating the P2VP layer thickness is to make the nitrogen-atoms on every section of P2VP block positively charged, thereby generate the polyeletrolyte chain that can make more than 1000 times of volumetric expansion in water, it can change the transmitance of gel mould in the extremely short time.
If polyeletrolyte chain trunk with the mutual conductively-closed of electric charge, under the effect in external force outfield, P2VP electrolyte chain will chaotic tangle, as thread ball; After removing the external force outfield, the positive charge of P2VP is mutually exclusive again, and the electrolyte chain-unfolding expands each P2VP layer, so the gel mould continuous conversion of refractive index in the above two kinds of cases, transmitance changes thereupon.
In the light modulation device in the utility model, by replaced the mixture of existing liquid crystal and polymkeric substance with a kind of new gel mould, described gel mould is polystyrene and two kinds of polymkeric substance of P2VP, material among the application does not need to add liquid crystal molecule and other light trigger or catalyzer, and promptly the content of gel mould and transmitance can not be affected; Simultaneously, this gel mould is being subjected under the situation of environmental stimuli, can change the refractive index and the transmitance of light rapidly, so the quality of gel mould is good.
In order to carry out clearer understanding to light modulation device of the present utility model, will exchange optical device by its manufacture method below and describe, please refer to as shown in Figure 2.
A kind of manufacture method of light modulation device wherein, may further comprise the steps:
Step 21: form the first printed wire layer and the second printed wire layer respectively at first conductive layer of first substrate that is oppositely arranged and second substrate and the edge of second conductive layer;
Step 22: at first substrate or/and form the gel rete on second substrate;
Step 23: with first substrate or/and second substrate carries out precuring handles;
Step 24: the opposite face of first substrate and second substrate is fitted;
Step 25: first substrate that will post and second substrate add to solidify to be handled.
Wherein, described at first substrate or/and to form the method for gel rete on second substrate be coating, blade coating, spraying and roller coat, can on first substrate and second substrate, be coated with the monomer of one deck polystyrene and P2VP during formation respectively, certainly, the monomer of polystyrene and P2VP can be respectively formed on arbitrary substrate of first substrate and second substrate; Perhaps first a kind of in coating one deck polystyrene and two kinds of monomers of P2VP earlier on first substrate or second substrate, carrying out the precuring first time handles, another kind in coating one deck polystyrene and two kinds of monomers of P2VP on a kind of surface in being formed with two kinds of monomers of polystyrene and P2VP carries out the precuring second time again and handles then.
Preferably, after described opposite face with first substrate and second substrate is fitted, further comprising the steps of:
Exerting pressure in surface to first substrate or second substrate, makes its binding face smooth.Wherein, described to the method exerted pressure in the surface of first substrate or second substrate without limits, as long as can make the opposite face of first substrate and second substrate fits smooth, such as pressing with roller, applicator roll or have gentle hands, be preferably by applicator roll device surface is evenly exerted pressure back and forth, make its binding face smooth.
Preferably, described with first substrate or/and second substrate carries out precuring is treated to:
With ultraviolet light is under the condition of room temperature 26 degree in temperature, shines 30-60 second, makes first substrate or/and the gel rete of second substrate surface has certain viscosity and nonflowing character, is easy to follow-up applying.
Preferably, described first substrate that will post and second substrate add to solidify and are treated to:
With ultraviolet light is under the condition of room temperature 26 degree, to shine 4-6 minute in temperature, makes first substrate or/and the gel rete full solidification of second substrate surface makes up difficult drop-off.
Light modulation device in the utility model, by replaced the mixture of existing liquid crystal and polymkeric substance with a kind of new gel mould, reduced the mixed process of liquid crystal and polymkeric substance in the pdlc film preparation process, and do not need to carry out light modulation, so the utility model tool is stopped, and technology is simple, cost is low, be easy to control with liquid crystal layer (price is expensive); Simultaneously, its gel mould also no longer prepared as pdlc film plants, and needs the irradiation of ultraviolet light, so safer and convenient.Gel mould described in the utility model is polystyrene and two kinds of polymkeric substance of P2VP, and the material among the application does not need to add liquid crystal molecule and other light trigger or catalyzer, and promptly the content of gel mould and transmitance can not be subjected to influencing; Simultaneously, this gel mould is being subjected under the situation of environmental stimuli, can change the refractive index and the transmitance of light rapidly, and the quality of gel mould is good.
To be described in more details the utility model by specific embodiment below.
Embodiment 1
1) polystyrene monomers: 5g;
2) P2VP: 5g;
Get length * wide * thick 80 * 60 * 0.70mm of being, transmitance is that two transparent conducting glass of 83% are as first transparent glass substrate and second transparent glass substrate; Print the formation first printed wire layer and the second printed wire layer respectively at first conductive layer of first transparent glass substrate that is oppositely arranged and second transparent glass substrate and the edge of second conductive layer; Be coated with the monomer of one deck polystyrene and P2VP on first conductive layer of first transparent glass substrate that is oppositely arranged and second transparent glass substrate and second conductive layer respectively, the thickness of described polystyrene and P2VP monomer layer is respectively 20 μ m and 20 μ m; First transparent glass substrate and second transparent glass substrate that are coated with monomer layer are carried out the precuring processing: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 30 seconds, make the monomer layer on first transparent glass substrate and the second transparent glass substrate surface have certain viscosity and nonflowing character, be easy to follow-up applying; First transparent glass substrate and second transparent glass substrate are scribbled the surperficial relative applying of monomer layer; With applicator roll the glass surface that posts is evenly exerted pressure back and forth, make its binding face smooth; First transparent glass substrate that pressing is good and second transparent glass substrate add to solidify to be handled: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 4 minutes, make the monomer layer full solidification combination on first transparent glass substrate and the second transparent glass substrate surface, obtain light modulation device A1.
Embodiment 2
1) polystyrene monomers: 3g;
2) P2VP: 3g;
Get length * wide * thick 80 * 60 * 0.80mm of being, transmitance is that two electrically conducting transparent PC plates of 88% are as the first transparent PC substrate and the second transparent PC substrate; Print the formation first printed wire layer and the second printed wire layer respectively at first conductive layer of the first transparent PC substrate that is oppositely arranged and the second transparent PC substrate and the edge of second conductive layer; Be coated with the monomer of one deck polystyrene and P2VP on first conductive layer of the first transparent PC substrate that is oppositely arranged and the second transparent PC substrate and second conductive layer respectively, the thickness of described polystyrene and P2VP monomer layer is respectively 30 μ m and 15 μ m; The first transparent PC substrate and the second transparent PC substrate that are coated with monomer layer are carried out the precuring processing: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 45 seconds, make the monomer layer of the first transparent PC substrate and the second transparent PC substrate surface have certain viscosity and nonflowing character, be easy to follow-up applying; The first transparent PC substrate and the second transparent PC substrate are scribbled the surperficial relative applying of monomer layer; With applicator roll the PC substrate surface that posts is evenly exerted pressure back and forth, make its binding face smooth; The first transparent PC substrate that pressing is good and the second transparent PC substrate add to solidify to be handled: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 5 minutes, make the monomer layer full solidification combination of the first transparent PC substrate and the second transparent PC substrate surface, obtain light modulation device A2.
Embodiment 3
1) polystyrene monomers: 4g;
2) P2VP: 5g;
Get length * wide * thick 80 * 60 * 0.90mm of being, transmitance is that 92% electrically conducting transparent PC plate and electrically conducting transparent PMMA plate are as the first transparent PC substrate and the second transparent PMMA substrate; Print the formation first printed wire layer and the second printed wire layer respectively at first conductive layer of the first transparent PC substrate that is oppositely arranged and the second transparent PMMA substrate and the edge of second conductive layer; Be coated with the monomer of one deck polystyrene and P2VP on first conductive layer of the first transparent PC substrate that is oppositely arranged and the second transparent PMMA substrate and second conductive layer respectively, the thickness of described polystyrene and P2VP monomer layer is respectively 20 μ m and 30 μ m; The first transparent PC substrate and the second transparent PMMA substrate that are coated with monomer layer are carried out the precuring processing: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 60 seconds, make the monomer layer of the first transparent PC substrate and the second transparent PMMA substrate surface have certain viscosity and nonflowing character, be easy to follow-up applying; The first transparent PC substrate and the second transparent PMMA substrate are scribbled the surperficial relative applying of monomer layer; With applicator roll evenly exerted pressure back and forth in the PC or the PMMA surface that post, make its binding face smooth; The first transparent PC substrate that pressing is good and the second transparent PMMA substrate add to solidify to be handled: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 6 minutes, make the monomer layer full solidification combination of the first transparent PC substrate and the second transparent PMMA substrate surface, obtain light modulation device A3.
Embodiment 4
1) polystyrene monomers: 5g;
2) P2VP: 4g;
Get length * wide * thick 80 * 60 * 0.70mm of being, transmitance is 75% transparent conducting glass plate and length * wide * thick 80 * 60 * 1.00mm of being, transmitance is that 95% electrically conducting transparent PC plate is as first transparent glass substrate and the second transparent PC substrate; Print the formation first printed wire layer and the second printed wire layer respectively at first conductive layer of first transparent glass substrate that is oppositely arranged and the second transparent PC substrate and the edge of second conductive layer; On first conductive layer of first transparent glass substrate that is oppositely arranged, be coated with one deck polystyrene monomers earlier, the thickness of described polystyrene is 20 μ m, then carrying out the precuring first time handles, the process that the described precuring first time is handled is: with ultraviolet light is under the condition of room temperature 26 degree, to shine 50 seconds in temperature; At the monomer of the surface coated one deck P2VP that is formed with polystyrene monomers, the thickness of described P2VP monomer layer is 20 μ m then; First transparent glass substrate that is coated with polystyrene and P2VP monomer layer is carried out the precuring second time to be handled, the process that the described precuring second time is handled is: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 55 seconds, make the monomer layer of the first transparent glass substrate conductive layer surface have certain viscosity and nonflowing character, be easy to follow-up applying; Fitted in the surface that first transparent glass substrate and the second transparent PC substrate are oppositely arranged; With applicator roll the glass substrate or the PC substrate surface that post are evenly exerted pressure back and forth, make its binding face smooth; First transparent glass substrate that pressing is good and the second transparent PC substrate add to solidify to be handled, process is: with ultraviolet light is under the condition of room temperature 26 degree in temperature, shone 330 seconds, make the monomer layer full solidification combination between first transparent glass substrate and the second transparent PC substrate, obtain light modulation device A4.
Detect transmitance (under energising and the powering-off state), the tear strength of the light modulation device A1-A4 that embodiment 1-4 obtains respectively and wear out according to following method, the result is as shown in table 1:
＜transmission measurement 〉
The transmitance of the visible light of light modulation device can record with the spectrophotometer instrument of the excellent Nico WFJ2100 of company model;
＜tear strength test 〉
The tear strength of light modulation device can record with the increase income automatic Material Testing Machine of the KY8000 of test machines factory series 0-5000N model of Jiangdu;
＜burn-in test 〉
The aging of light modulation device can record with the light aging test machine that the BR-UV-HS of company of farsighted instrument company model is moored in Shanghai;
Table 1:
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1, a kind of light modulation device, comprise first substrate and second substrate that are oppositely arranged, and be separately positioned on first conductive layer and second conductive layer on first substrate and the second substrate opposite face, the edge of described first conductive layer and second conductive layer is respectively arranged with the first printed wire layer and the second printed wire layer, it is characterized in that, between first conductive layer and second layer electricity layer, be provided with the gel rete.
2, light modulation device as claimed in claim 1 is characterized in that, the thickness of described gel rete is 10-60 μ m.
3, light modulation device as claimed in claim 1 is characterized in that, also comprises the modulator that is electrically connected with the described first printed wire layer and the second printed wire layer.
4, light modulation device as claimed in claim 1 is characterized in that, the transmitance of described first substrate and second substrate is 75-95%, and thickness is 0.40-1.20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201470678U CN201293886Y (en) | 2008-08-27 | 2008-08-27 | Light modulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201470678U CN201293886Y (en) | 2008-08-27 | 2008-08-27 | Light modulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293886Y true CN201293886Y (en) | 2009-08-19 |
Family
ID=41007367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201470678U Expired - Lifetime CN201293886Y (en) | 2008-08-27 | 2008-08-27 | Light modulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293886Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154618A (en) * | 2016-08-31 | 2016-11-23 | 张家港康得新光电材料有限公司 | Dimming function film, dimming function assembly and dimming function device |
-
2008
- 2008-08-27 CN CNU2008201470678U patent/CN201293886Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154618A (en) * | 2016-08-31 | 2016-11-23 | 张家港康得新光电材料有限公司 | Dimming function film, dimming function assembly and dimming function device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101430449B (en) | Polymer dispersion liquid crystal piezo-optical effect film and manufacturing method and use thereof | |
| WO2002001281A9 (en) | Manufacturing process for electrophoretic display | |
| EP1495360A1 (en) | Electropolymerization method for preparing nano-tube type conducting polymer using porous template, method for preparing electrochromic device, and electrochromic device prepared therefrom | |
| CN101794043A (en) | Liquid crystal membrane capable of being repeatedly processed and manufacturing method thereof | |
| He et al. | Scalable and sensitive humidity-responsive polymer photonic crystal films for anticounterfeiting application | |
| CN106324883A (en) | Method for preparing cholesteric liquid crystal functional film through ultraviolet light-heating two-step polymerization | |
| CN105807450A (en) | Novel transparent conducting electrode and intelligent light dimming film comprising same | |
| CN201293886Y (en) | Light modulation device | |
| CN101519500B (en) | Brightness strengthening film for LCD and its manufacturing method | |
| Yamazaki et al. | Kinetic studies of WO3-based photochromism in polyvinyl alcohol film | |
| JP2586529B2 (en) | Liquid crystal display | |
| CN204945556U (en) | Utilize the intelligent glass that Polymer Dispersed Liquid Crystal makes | |
| JP2002040490A (en) | Optical device, composition for optical device, and method for controlling stimulation responding polymer gel | |
| WO2023236327A1 (en) | Flexible electrochromic film and preparation method therefor | |
| JPH0346621A (en) | Liquid crystal device | |
| CN202330952U (en) | High-transmittance dimming glass | |
| CN201607594U (en) | Polymer dispersed liquid crystal shearing effect curtain | |
| CN220872851U (en) | Electrochromic device with microcapsule structure | |
| CN100582876C (en) | Shear transformation polymer network infrared liquid crystal light valve and manufacturing method thereof | |
| US11740530B2 (en) | Electro-optic media including oppositely charged particles and variable transmission device incorporating the same | |
| CN105116593A (en) | Intelligent glass manufactured through polymer-dispersed liquid crystals and method | |
| JPH03161720A (en) | Liquid crystal display element and device | |
| JPH07281158A (en) | Production of liquid crystal optical modulation element | |
| JPH04208924A (en) | Liquid crystal panel and production thereof | |
| CN116413936A (en) | Color-adjustable liquid crystal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |